fix(el): Process delayed callbacks before listening on the network
fix(el): Process delayed callbacks before listening on the network

Thus connections that are being stopped are already removed before
dropping into "select". This is necessary and was uncovered by the unit
tests.

JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,open62541/open62541,jpfr/open62541,JGrothoff/open62541,JGrothoff/open62541,jpfr/open62541,jpfr/open62541,open62541/open62541,open62541/open62541,open62541/open62541